单选题The （） in the injector will lift at a pre-set pressure which ensures that the fuel will atomize once it enters the cylinder.Aneedle valveBnozzlesCpistonDspring
单选题
The （） in the injector will lift at a pre-set pressure which ensures that the fuel will atomize once it enters the cylinder.
A
needle valve
B
nozzles
C
piston
D
spring
参考解析
解析：
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相关考题：
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